US Bridges

Il 104 over Ditch

Fair

Pike County, Illinois · 2.85 MI E Adams CO · Structure no. 075712800000000

Built
1934
91 years old, rebuilt 1963
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
775
2023 count
Owner
State
State Highway Agency

About this bridge

Il 104 over Ditch is a concrete culvert carrying Il 104 over Ditch in Pike County, Illinois. It was built in 1934 and reconstructed in 1963, so it is 91 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 775 vehicles a day, roughly 18% of them trucks, projected to reach 928 by 2046. The structure is 31 ft (9.6 m) long.

CarriesIl 104
CrossesDitch
Location2.85 MI E Adams CO
RouteState Highway 104
Coordinates39.80815, -90.86306
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length31 ft (9.6 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (2023)
Projected traffic928 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 104 over Ditch built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1963.

What condition is Il 104 over Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Il 104 over Ditch carry?

About 775 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is Il 104 over Ditch?

The structure is 31 ft (9.6 m) long with a longest span of 13 ft (3.9 m).

Who owns Il 104 over Ditch?

It is owned by the State Highway Agency.